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2 years ago

The first term of an arithmetic sequence is 4 and the tenth term is 67.

Mathematics

1 answer:

serg [7]2 years ago

8 0

Answer:

d = 7

Step-by-step explanation:

The nth term of an arithmetic sequence is

$a_{n}$ = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Give a₁₀ = 67 and a₁ = 4 , then

a₁ + 9d = 67

4 + 9d = 67 ( subtract 4 from both sides )

9d = 63 ( divide both sides by 9 )

d = 7

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sattari [20]

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3 years ago

Tim has to cover 3 tanks completley with paint.

bija089 [108]

answer:

<h3>Total surface area of 3 tanks=34.3 m^2</h3><h3>7 tins of paint are required.</h3>

Solution,

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Given tank has top and bottom 

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 $3 \times 11.435 \: {m}^{2} \\ = 34.3 \: {m}^{2}$ 

Given a tin of plate covers 5m^2 area.

No.of tins required:

1 tin 5m^2

x tin 34.3 m^2

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Hope this helps...

Good luck on your assignment....

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2 years ago

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maria [59]

Answer:

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E) The area of a circle is in square units.

Step-by-step explanation:

These are all true.

Hope it helps and is correct!

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Len [333]

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3 years ago

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